Copy letter from Robert William Frederick Harrison to Professor Sir Joseph Larmor, Sec RS 'Dear Sir Joseph Larmor, The scrap of paper on which you had pencilled an instruction with regard to sending Mr Sangster's paper to Dr Chree and which I last saw on your tale in the next room, has unfortunately got mislaid, and I am uncertain as to the precise request to be made to Dr Chree. In connection with the paper I enclose a copy of Professor Schuster's report, and if you will mark on it how much is to be sent to Dr Chree I will have it copied out and sent to him with the paper. So far as my recollection goes, the separate suggestion of Dr Schuster's for a geometrical treatment of the proposition on page 13 of the paper was not to go to Dr Chree. I am sorry to trouble you.' [no enclosure] 25 April 1910